#CATAPLEXY ATTACK DRIVERS#

Resisting stage is necessary for every cataplexy and might reflect the compensation mechanism, while atonic stage may be omitted in some patients. Patients with narcolepsy typically present in their late teens to early adulthood, but the cataplexy attacks may develop later in the disease. Subtle findings require specific probing by the clinician. It can range from a simple head droop to complete paralysis. However, medication history seems have no influence on either cataplexy duration or ESS score.įour-stage segmentation shows the dynamic process of the cataplectic attack, which is different from the traditional classification of complete or partial cataplexy. This case highlights the variable weakness experienced during a cataplexy attack. Both duration of cataplexy and ESS score are negatively correlated with disease course. The Epworth Sleepiness Scale score (ESS) has a positive correlation with the total duration of cataplexy. Resisting stage is predominant (56.4%) in cataplexy, while atonic stage is most related with the total duration of cataplexy. Four cataplectic stages (ie, triggering, resisting, atonic, and recovering) were identified according to clinical and electromyograms characteristics. During a cataplexy attack, which can last up to several minutes and occur several.

#CATAPLEXY ATTACK DRIVERS#

Nine patients (43%) went through complete cataplectic attacks while the others experienced partial attacks. 18.6.1 OSA All drivers 18.6.2 Narcolepsy Non-commercial drivers. We observed 81 cataplectic episodes in 21 patients with diverse triggers, including humorous or exciting videos, tickling, recalling horrible memories and exercising. Correlations were analysed between cataplectic stages in pairs, and between cataplectic stages and other clinical features. Each cataplectic episode was segmented into four stages according to the v-PSG. The most serious cataplectic attack from each patient was analysed. We experimentally triggered patients with NT1 into cataplexy while under video-polysomnography (v-PSG) monitoring in the sleep lab. This study was conducted to clarify the clinical characteristics of cataplexy by staging, and to further analyse the correlations of clinical features and cataplectic stages in patients with narcolepsy type 1 (NT1). Cataplexy is a pathognomonic symptom of narcolepsy type 1.

Cataplexy attack